Feldspar (Orthoclase)
Potassium Feldspar (KAlSi3O8)
mineral
Category
Metamorphic (Modified)
Browse metamorphic (modified) specimens identified by the Rock Identifier community.
Moonstone (Adularia)
Potassium aluminum silicate (KAlSi3O8)
mineral
Sapphire
Corundum (Al2O3)
mineral
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Green Aventurine
Silicon dioxide (SiO2) with Fuchsite inclusions
mineral
Green Aventurine
Aventurine Quartz (SiO2 with inclusions of Fuchsite mica)
mineral
Green Aventurine
Silicon Dioxide (SiO2+KAl2(AlSi3O10)(OH)2)
metamorphic
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
mineral
Potassium Feldspar
Orthoclase (KAlSi3O8)
mineral
Milky Quartz on Matrix
Quartz (Silicon Dioxide, SiO2)
mineral
Pyrite-rich Ore
Pyrite (FeS2) with secondary minerals
mineral
Jadeite
NaAlSi2O6; Jadeite silicate mineral
metamorphic
Orthoclase Feldspar
Orthoclase (KAlSi3O8)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
Mineral
Aventurine
Silicon dioxide with micas (SiO2 + K(Al,Cr)2AlSi3O(OH)2)
metamorphic
Amethyst
SiO2 (Silicon Dioxide with Iron impurities)
mineral
Magnetite (in matrix)
Magnetite (Fe3O4)
mineral
Garnet (Pyrope or Almandine)
Silicate (X3Y2Si3O12)
mineral
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Banded Agate
Silicon Dioxide (SiO2)
mineral
Blue Quartz
Quartz (Silicon Dioxide) with blue inclusions (SiO2)
mineral
Jade (Nephrite and Jadeite)
Nephrite: Ca2(Mg,Fe)5Si8O22(OH)2; Jadeite: NaAlSi2O6
metamorphic
Jadeite
NaAlSi2O6 (Sodium Aluminum Silicate)
metamorphic
Smoky Quartz
Silicon Dioxide (SiO₂)
mineral
Orthoclase Feldspar with Quartz
Orthoclase (KAlSi3O8)
mineral
Amazonite
K(AlSi3O8) - Potassium Aluminum Silicate
mineral
Biotite Mica in Quartz
Biotite (K(Mg,Fe)3AlSi3O10(F,OH)2) in Quartz (SiO2)
mineral
Quartz (Milky/Rose Quartz variety)
Silicon Dioxide (SiO2)
mineral
Quartz (Iron-stained)
Silicon Dioxide (SiO2)
mineral
Rough Citrine Quartz
Silicon Dioxide (SiO2) with iron impurities
mineral
Yellow Citrine Quartz
Silicon Dioxide (SiO₂)
mineral
Hematite
Iron(III) oxide (Fe2O3)
mineral
Quartz (Common or Milky)
Silicon Dioxide (SiO2)
mineral
Bornite (Peacock Ore)
Bornite (Cu5FeS4)
mineral
Nephrite Jade
Nephrite (Ca2(Mg,Fe)5Si8O22(OH)2)
metamorphic
Citrine
Silicon dioxide (SiO2)
mineral
Aquamarine
Beryl (Be3Al2Si6O18)
mineral
Yellow Aventurine (specifically a carved crescent moon)
Silicon Dioxide (SiO2) with inclusions
mineral
Smoky Quartz (with complementary stones in jewelry setting)
Smoky Quartz (Silicon Dioxide - SiO2)
mineral
Banded Agate (White Agate)
Chalcedony (Silicon Dioxide, SiO2)
mineral
Aquamarine
Beryl (Be3Al2Si6O18)
mineral